TiO2-reduced graphene oxide nanocomposite for high-rate application of lithium ion batteries

TiO2-reduced graphene oxide nanocomposite has been synthesized by a facile hydrothermal process

Chuchun Zheng; Chunhua He; Haiyan Zhang; Wenguang Wang; Xinling Lei

2014

Scholarcy highlights

  • TiO2-reduced graphene oxide nanocomposite has been synthesized by a facile hydrothermal process
  • The structure and morphology have been characterized by X-ray diffraction and scanning electron microscopy
  • The result shows that a unique nanocomposite has been obtained with the TiO2 nanoparticle homogenously dispersed onto the reduced graphene oxide sheets
  • The electrochemistry performance has been tested through cyclic voltammetry, constant current discharge/charge tests, and electrochemical impedance techniques
  • The nanocomposite exhibits good high-rate capacity of 136.1 mAhg−1 at rate of 1,000 mAg−1, and, after 100 cycles, the coulombic efficiency is still maintained as high as 98.6 %
  • The high specific capacity and good stability can be attributed to the unique structures and make the nanocomposite a promising substitute of the current commercial graphite anode in high-power, high-rate application of lithium ion batteries

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